What works did Ashoke Sen do? || A detailed video essay
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- Опубліковано 6 чер 2024
- Description
Ashoke Sen is a brilliant theoretical physicist who has significantly contributed to theoretical physics. In this video, we briefly review his academic background and his contributions to physics.
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Some links (including sources used in this video)
1) Ashoke Sen's homepage: www.hri.res.in/~sen/
2) List of Ashoke Sen's works: inspirehep.net/authors/989341...
3) Interview of Ashoke Sen at Bhavana: bhavana.org.in/stringing-theo...
4) Link to the high energy physics resources page on my website: hassaansaleem.com/graduate-le...
Contact Info
My website: hassaansaleem.com
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Timestamps
0:00 Overview of Sen's Popularity
0:56 Intro
1:29 His background
3:01 One of his Ph.D. works
4:23 His postdocs and faculty positions
5:26 His work on heterotic string equations
6:52 His work on solution-generating methods
7:37 His work on Fayet0Iliopoulos term
8:11 His work on dualities
9:32 His work on F theory
10:40 His work on string field theory
12:48 His work on black hole entropy and degeneracies
19:18 His work on Non-BPS branes and tachyons
22:23 His work on string perturbation theory
23:17 His work on D instantons
23:59 His work on soft theorems
24:58 His work on Matrix models
25:34 His other awards
25:50 Concluding words
Prof. Sen carries on the legacy of Prof. Satyendranath Bose and Prof. Amal Kumar Raychaudhri with scholarly grace and his innate genius!! Jai Bharat!! 🙏🇮🇳❤️🇮🇳🙏
Ashoke Sen Sir: ❤
Abhay ashtekar is better than him
@@g.o.a.t4674 I don't know your formal educational background, but it seems your comment befits your user name!! 😃😃
It's utterly foolish, to say the least, to compare the works of Prof. Ashtekar and Prof. Sen, as the latter (like the former) is widely acclaimed in learned circles as an outstanding physicist. So, please refrain from making such comments on the public domain. If you have anything constructive or informative to add beyond what has already been said about Prof. Sen in this video post, I am all attention!! Jai Barat!! 🙏🇮🇳🙏
@@sumantabanerjee8287 Sen's work is in string theory ie which is o ly mathematical and not even partially correct.
Abhay Ashtekar's Ashetkar variables are like how F=ma is to lagrange's equation. Ashtekar formalism is a partially Quantized Gravity.
You know only prof amalkumar raychaudhuri. There was also a physicst called Datt he was the first one to predict the existence of black holes and Vishweshwara also kid learn things
@@g.o.a.t4674bodied the bootlicker 😂😂😂
You belong to 0.0000000000001% of the youtubers who actually can simplify string theory
Thanks. However, I think these are too many zeros 😅
I really like it how you make great Physicists, who are unknown to the average Joe, more popular so we can appreciate their work as well. Thanks for your videos!
Thanks for your kind feedback.
what an effort u r putting man!!!
Thanks for your feedback, and thanks for watching
Great explanation. I liked your video. 👍
Loving the series❤
Thanks for your feedback and thanks for watching.
Absolutely rilliant video!!
Thanks
Thank you for this video! The amount of work that geniuses like Sen do is just unbelievable. Almost equally unbelievable is how they got Ashoke Sen to dress up so nicely for the Breakthrough Prize ;)
I agree that he is also an amazing teacher and I recommend everyone to find lectures by Sen on UA-cam. He explains things so well and he is so utterly unpretentious. A true genius!
Glad you enjoyed it!
Loved it. Subscribed to your channel. Please keep doing it. I hope one day you will have a million subscribers. Good luck.
Thanks for your feedback and your good wishes. Thanks for watching, too.
Humanity will need to evolve for that to happen.
Thanks for briefing his contribution in detail
My Pleasure
Keep making these!!
Thanks for your feedback, and thanks for watching.
Thanks for making this video
Thanks for your feedback, and thanks for watching.
I love these videos on historical account of someone’s academic career!
Thanks
Thanks for this ❤
Welcome. Thanks for watching
Your voice is adorable and quite appealing in presentation, and this video making and information sharing is outstanding.
Thanks for your very kind feedback. Thanks for watching
A comments of appreciation of a "Giant " and the channel itself . A man of theoretical physics.
This video is as if a good review on ' STRING THEORY ' as well as a good review of faces whom I have personally observed as an observer since String 2000 conference @ TIFR, Mumbai.
I am a proud Indian and proud citizen of Bengal. This field is very much exhausted by all our institutions , but not feel proud for physics or science. Quantum computer might use String in next 💯 s of year. As all we know blackholes always breaks and all its informations can be used as back up memories and hardware for future colliders.
Good luck all my dears .
Next level stuff ❤
Thanks for your feedback, and thanks for watching.
Bohot khobsurat.... I will be happy agr ap Dr Amir Iqbal pa thora research kr k ik video bnai... Because Pakistan mai us k takr k koi research nahi hai in theoretical physics.. Lakn ye boht hi ik afsoos hai.. K pakistan mai even boht sare theoretical field mai phd kr rahai hai... But boht hi kam jantai us ko... Ye mere apna khial hai k us jaise pata nahi pr paida hota ye nahi... Lakn koi us ko janta tk nahi... So i appreciate your efforts... Amazing
Very useful, informative and interesting video. Thank you very much for exploring Prof. Sen's contribution. I like your content very much. How can I help you to create more videos like this?
Thanks a lot for your feedback and I am glad that you like my work.
You can support this channel by becoming a member of this channel. That really helps me creating these videos. To become a member, you can click the "join" button on my channel homepage (linked below). Thanks.
Channel homepage: ua-cam.com/channels/3nAENP4F5GKrGk9BLNFLvw.html
The presentation is awesome
Thank you
Great video
Thanks
Along with Great Physicst He is very down to earth Person, amazed to spent time with Great Personality.❤
Yes, of course. He is very humble.
Thanku for this video
My utmost pleasure
This is very nice thanks
My pleasure
I am lucky that i have prof sen as my mentor at icts
Damn bro are u studying at ICTS ?? Very much congrats bro can u please tell how did u proceeded to go and become theoretical physicist at ICTS it’s quite a big honour I am from India as well please can u guide me a bit if u have some spare time I am currently in class 11th I have done QM from griffiths and now doing from sakurai and trying to learn general relativity next
@@ikshu0769after your 12th, get enrolled at some college, and do your BSc well. You could also look at the BS-MS degrees at the different IISERs and at the IITs. ICTS doesn't have a bachelor's programme. Anyway, after your Bachelors or your BS-MS, you need to sit for one or both of the following exams - TIFR, JEST. Get a good rank in both, get called for the interview, clear the interview and behold, you'll be enrolled :)
Hey, i really hope you read this... Im in my 3rd year of BTech and I want to pursue theoretical physics (cosmology and quantum gravity) and im looking for ways to make the switch efficiently. Im in Allahabad University (Dr. Sen is just a few kilometres away from where i live in HRI. Yet so far away) I read about the Visiting Student Program at HRI. Do you think I should apply? I have studied quantum mechanics, cosmology and special relativity from the Stanford University open courses. Leonard Susskind.
Subscribed to your channel👍👍👍👍👍
Thanks. Thanks for watching as well.
I did not get the conclusion of the black hole entropy calculations. Did the final results accounting for the multicenter states match up with the loop quantum gravity results or not?
So the result that didn't match the result from LQG was regarding the entropy of Schwarzchild black holes. That result did have a disagreement with LQG result and I don't think it was resolved.
After putting together this video, the host and the editing team embarked a new career running bullet trains
Our whole subcontinent should produce a whole lot more guys like Sen and Amir Iqbal !
Nice essay
Thanks. Your channel is quite a good collection of physics lectures. I think I have watched your channel from time to time since 2019 or probably from 2018. Thanks.
👍👍👍
Yay 👍
Hlo need help : why we study covariant form of various eq( dirac eq for QM) ( cause the eq is covarient so why change its form)
Also why their is no explanation to contravarieny form?
Thank you
We use covariant form of equations so that we don't have to check if the resulting expressions transform correctly under Lorentz transformations.
There is no "contravariant" form of equations. Physicists use the word "covariant" to refer to the equations that transform correctly under Lorentz transformations and also to refer to vectors that transform like the gradient operator. So, this is just a semantic confusion. Again, there is no contravariant form of equations.
Amazing series ❤ can you make one on the contribution of sir Roger Penrose... ?
Thanks. I will look into it. Thanks for the suggestion.
@@Phymaths okay thanks for reply hassan...
Pleasure
I want to be a physicist too " sir
I've passed my class 12th with decent marks ' is bsc physics worth doing ? Or there's any other way to pursue carrier as a physicst
Pls guide me sir I'm from Bihar
Well I don't know about the quality of Bsc that you are considering to do but as a general remark, I would say that to pursue your career as a physicist, it is very advisable to study physics in your undergrad and your graduate years.
So, I would say that yeah, go for a physics degree if you want to become a physicist.
Witten truly is one of the greatest.
Sir i have not a msc physics . I am come from msc math department . I have a question can a mathmatician contribute in theortical physics . I have a physics in undergraduation . Not in msc .😅😅
It is good. You are in a quite good position. As you have done your bachelors in physics, you do have the skills that physicists require (e.g. coming to the right answer by intuition.. something that pure mathematicians don't always have when they work on theoretical physics) and you have done your Masters in mathematics which gives you mathematical tools that you can use in your research.
So, in short, yes you can definitely contribute to theoretical physics. Good luck.
Proud Bengali
Sotti
You must have worked very hard to become Bengali.
Sen is God of physics for physics students i India…
Yet 99% people dont know him
@@rt6055 Doesn’t matter , most people also don’t know Ravishankar or the Beatles or Pink Floyd or Edward Witten also….
8:34 sakurai😅
Haha yup
He should have been given noble prize for this work.
Sen is not a gaint in Indian physics he is big in Theoretical Physics of the world
These statements aren't mutually exclusive. Both of these things are true.
how to understand all these? 🥲